IF you want to travel with a furry friend, Spain ranks among the worst destinations in Europe with strict and inconsistent transport rules . Over the last eight years, he has documented his travels with his pooch Pipper on his website, Pipper on Tour. Depending on the city, transport rules can differ drastically. The metro is key in any tourist itinerary, but only 4 of Spain’s 8 metro systems allow dogs (Madrid, Barcelona, Palma, Granada). Gabilondo still thinks that Spain has a lot of catching up to do to reach its European neighbours.